I brewed a batch of beer on saturday, had a nice krausen on sunday with lots of action in the airlock. I get home from work today and the krausen is clearing and there was little to no activity in the airlock. I took off the air lock and dropped in a thermometer to see the temp of the wort (73 degrees) I moved it to a bit cooler place. Is this normal or should I be concerned about this batch? my original gravity was 1.050 and expected final is 1.012 I didn't take a hydrometer reading as I figured it was to early. Also will there be any issues with me removing the air lock this early in the fermentation stage?